Recommend Another Three MP4 Codec Pack for Mac; Part 1. Best MP4 Codec to Play MP4 Videos on Mac UniConverter is the best MP4 codec that can enable playing of MP4 videos on Mac devices. The converter is a tool used to convert videos and audio from one format to another. In this case, it can convert the MP4 files on your Mac device to a. Mac Model Dolby Digital (.ac3) Dolby Digital Plus (.ec3) Dolby Atmos (using Dolby Digital Plus / JOC) Dolby Vision; Mac Pro (2019) — (Profile 5; when connected to a suitable display, e.g. Pro Display XDR).
Every time I try to play a .mov video in 4K (3840X2160, 50 FPS) with QuickTime, VTDecoderXPCService CPU Usage is more than 300% (overall CPU Usage up to 30%) and the video is jerky, stuttering, dropping frame.